作者: Ovidiu Constantinescu , Marco Thines
DOI:
关键词: Botany 、 Arctotis 、 Plasmopara halstedii 、 Diffi cult 、 Quarantine 、 Molecular analysis 、 Biology 、 Arctotheca 、 Downy mildew 、 Plasmopara
摘要: Plasmopara halstedii (Farl.) Berl. & de Toni is among the most important species hampering commercial sunfl owerproduction in many countries. Downy mildew on Arctotheca and Arctotis collected Australia New Zealand has been attributedto halstedii, although it never reported ower those two Potentially this makesit diffi cult for to claim be free of downy mildew; implications quarantineand trade. Here we present morphological molecular analyses specimens collectedin Zealand. Our results demonstrate that these plants are not attacked by but bya new which formally describe as majewskii sp. nov. study. Consequently, quarantine regulationsfor P. need enforced order protect industry